|
1) Waves which do not require any medium for their propagation are called a. mechanical waves b. electromagnetic waves c. transverse waves d. longitudinal waves
|
||||
|
2) The period of the pendulum is independent of its a. mass only b. amplitude only c. frequency d. mass and amplitude
|
||||
|
3) The maximum displacement of a body from its mean position is a. time period b. frequency c. vibration d. amplitude
|
||||
|
4) The velocity of the wave is defined as a. v = fλ b. v = st c. v = at d. f=1⁄T
|
||||
|
5) The number of cycles completed in one second of a vibrating body is called a. time period b. amplitude c. frequency d. wave length
|
||||
|
6) If waves are reflected in the first medium after falling on the second medium then the angle of reflection and angle of incidence are a. equal b. unequal c. undefined d. undetermined
|
||||
|
7) Waves which doesn't require any medium for their propagation are a. electromagnetic b. transverse c. longitudinal d. mechanical
|
||||
|
8) The velocity of the wave with frequency 4Hz and wavelength 0.4m is a. 8ms-1 b. 1.6ms-1 c. 16ms-1 d. 2ms-1
|
||||
|
9) The spreading or blending of waves around the sharp edges or corners of obstacles or slits is called a. refraction of waves b. diffraction of waves c. reflection of waves d. deflection of waves
|
||||
|
10) The reciprocal of the time is a. amplitude b. frequency c. wave length d. speed
|
||||
|
11) The frequency of simple pendulum 1 m long at a location where T = 1.99 s will be a. 0.5 Hz b. 2 Hz c. 2.6 Hz d. 3 Hz
|
||||
|
12) The potential energy of mass attached to spring at mean position is a. maximum b. moderate c. zero d. minimum
|
||||
|
13) According to Hooke's Law, the force is directly proportional to the a. time b. change in length c. speed d. velocity
|
||||
|
14) A wave moves on a slinky with a frequency of 5 Hz and a wavelength of 0.6 m. The speed of the wave is a. 3 ms-1 b. 2 ms-1 c. 8.3 ms-1 d. 0.12 ms-1
|
||||
|
15) When a wave from one medium enters into the second medium at some angle, its direction of travel changes. This phenomenon is known as a. refraction of waves b. diffraction of waves c. reflection of waves d. deflection of waves
|
||||
|
16) Shock absorbers in automobiles are one particle application of a. linear motion b. simple harmonic motion c. damped motion d. random motion
|
||||
|
17) Waves which require any medium for their propagation are called a. mechanical waves b. electromagnetic waves c. transverse waves d. longitudinal waves
|
||||
